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View the video on a flood which affected Singapore on 23 June 2020.
What cause the flash flood?
Who are affected?
Where are the areas affected?
When did it occur?
Why is Singapore prone to flash flood?
How can the damage from flooding be mitigated?
Thunderstorms and flash flood in Singapore 2 Nov 2020
Flash flood June 2019
This flood struck Japan in July 2017. Can you identify the type of flooding? What is the cause and impact of the flood?
The Kyodo news agency reported on Thursday (Jul 6) that six people had died, with around 20 people still missing after unprecedented torrential rain caused rivers to burst their banks swamping parts of Kyushu. (AFP/STR)
Read more at http://www.channelnewsasia.com/news/asiapacific/deadly-floods-sweep-southern-japan-9008668
The following floods occurred in April 2017. Can you identify the types of flood?
Banks of Mississippi River flooded Aug 2019
https://www.insurancejournal.com/news/southcentral/2019/08/19/536418.htm
Coastal floods
Flooding along the coast, especially low-lying coastal land and river mouths, caused by
- storm surge from typhoons or hurricanes
- tsunamis
Caribbean coastal areas flooded
https://public.wmo.int/en/media/news/coastal-flooding-forecasts-strengthened-caribbean
Watch the video on how the storm surge brought by Typhoon Haiyan caused coastal flooding in Philippines in 2013.
Watch the video below how the Great Tohoku Earthquake and Tsunami that hit Japan in 2011 caused a coastal flood in Miyako City.
River floods
Rivers can overflow its banks due to increase discharge in the river due to
– Snowmelt
– Heavy rainfall
– Dam failure
Heavy rain causing river flood. Why does the highest amount of rainfall occur before the peak in the level of water in the river?
Watch the video on how River flood of Chao Phraya affects Bangok,Thailand.
Watch the video below to understand why Mississippi is prone to flooding (first 3 mins of video).
Watch the video below to see how a dam collapsed in Laos caused flooding
When did the flooding occur?
Where are the areas affected?
What was the cause of the flood?
Who are affected?
Why is there a need to build a dam?
How could this have been mitigated?
Updated 27 July:
Dam collapse in Russia 8 July 2020
Flash floods
• quick rise in water level
• takes place suddenly and lasts for a short period of time
• A flash flood can be caused by
– Heavy rainfall
– Coastal and river floods
Flash flood at Orchard Road 2019
Flooding Jakarta Indonesia
2 Jan 2020
25 Feb 2020
https://www.channelnewsasia.com/news/asia/torrential-rains-flooding-jakarta-indonesia-12468166
What cause flooding in Singapore?
Flash flood in Singapore 2013 caused by heavy rainfall
The worst flood in Singapore
Why is Singapore more prone to flooding?
Densely built-up area with a high proportion of concrete surfaces which are impermeable. When it rains heavily, there are little or low levels of
infiltration and this leads to high surface run-off.
The drains are unable to cope with the high volume of water. Moreover, debris also chokes up the drains and water is unable to flow smoothly. As a result, the drains overflow, resulting in flash floods.
18 dead as heavy rains submerge Thailand's south ST 8 Jan 2017
This village (above) in the southern Thai district of Cha-uat is among thousands hit by floods. Rescue teams have been mobilised to evacuate residents.PHOTOS: AGENCE FRANCE-PRESSE
source: http://www.straitstimes.com/asia/se-asia/18-dead-as-heavy-rains-submerge-thailands-south
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